in src/api/tokio.rs [39:48]
fn init(&mut self, size: usize, filename: &str)
-> impl std::future::Future<Output = ()> + Send;
/// This function is called whenever `size` bytes have been
/// downloaded in the temporary file
fn update(&mut self, size: usize) -> impl std::future::Future<Output = ()> + Send;
/// This is called at the end of the download
fn finish(&mut self) -> impl std::future::Future<Output = ()> + Send;
}
impl Progress for ProgressBar {